Warp-tying machine.



OTTO FISCHER & fisKAR FISCHER.

WARP IYING MACHINE.

APPLIUATION FILED DBO. 1'6. 1912.

Patented Aug. 5, 1913.

Lliifiasses 0 Wm. 7

v 11p van Cor s 0 L'Q F1 sqh mskarfische OTTO FISCHER & OSKAR FISCHER.

WARP TYING MACHINE. APPLICATION FILED 1320.16, 1912.

1,069,405, Patented Aug. 5, 1913.

6 SHEETS-SHEET 3.

OTTO FISCHER & OSKAR FISCHER.

WARP TYING MACHINE.

APPLICATION FILED DBO. 16, 1912' Patented Aug. 5, 1913.

6 SHEETSSHEET 4.

Mali

OTTO FISbHER & OSKAR FISCHER. WARP TYING MACHINE.

APPLICATION FILED DEC. 16, 1912.

1,069,405, Patented Aug. 5, 1913.

6 SHEETS-SHEET 5.

inventors WW Auorney OTTO FISCHER & OSKAR FISCHER.

WARP TYING MACHINE.

APPLICATION FILED DEG.16.1912.

Patented Aug. 5, 1913.

6 SEEETS-SHEE' 6,

wt Event or s a f fif f litei ischgr rfiswm Fischer To all whom it may concern:

t c "t e alien-i) in l o'r'ro rrsonnn Ann osnan rrscnnnjor rnannn, GERMAN WAEP-TYING MACHINE. I

oeaaos.

' Specification of Letters Patent.

mea na 5,1913.

.eppiication filed December 1s, 1312. Serial 1%. 736,973.

Figure tional' plan viewot' a detail thereof, and

Fig. 3 'a plan view of part of the actuating niechan1sm.- Fig. 4 1s a rear view of the ma- "chine partly in section, and Fig. 5 is an elevation of the side opposite to that shown 1n Fig.1. Fig. 6 is a front view of the machine, partly in section,and F1gs. 7 and 8 A are a side'view and end view otcertain elevation of an appliance for gathering the cut ends'of the warps". Figs. to12 are i two T-shaped parts 51, o2 erec-ted upon a carriage 1, which is automatically; movable parts broken away in Fig. 1. Fig. 9 is an detail views of the tying and cutting appliances; Figs. 13 to 16 arefdetail viewsof a stop motion forming part of the'machine.

F i 17 is a ers ective elevation showin the'arrangenient of the warps engaged with the'machine. Figs. 18 to 24 illustrate the operation of knotting one of the threads. Figs. and 26 are respectively, aside elevation and plan vie wof; an appliance for separating the warps.

upon rails parallel with the warp beam.

. The actuation is effected by means ofa pulley which is provided with a crank handle :and drives shafts carryingcalns, toothed led ,oyeinand under spindles (3, 7 and 8,9115

wheels and other gear, as will be described hereinafter.

In the drawing, the referencecharacters 2 and 3 designate warps to be tied together, the ends of these warpsbeing attached to clamps 1, 5 (Fig. 1) and the warps being shown in Fig 17, so that the warps cross eachother between the spindles. One of the clamping devices5 is adjustableby a screw spindle 10 in'the longitudinal direction of the machine, in order that the warpscan be 1 iso side elevation of the apparw tllS',W1l3l1 parts broken away,-F1g. 2 a secaccurately adjusted one above the other. @This may be efifected by hand by means of a crank on the spindle, or by a regu'latmg device to be described hereinafter. The spindles 6, 7 and 8, 9 are mounted in bearings 11 fixed to the carriage 1, and are actuated by means of a shaft 12 driven by'a "pawl 13 and lantern Wheel 1'3 so that in the course or one revolution of the driving shafts '14 and 15 the shaft 12 makes half a revolution, the rotation of the shaft 12 being onset). f

intermittent. The spindles 6, 7 and 8, Shave I hooked ends which serve to retain the warps adjacent thereto, and in the course of each half revolution of these spindles the-warps nearest the hooks are dropped, and the next warps then come into position to be dropped by the next half revolution.

Fo1"tensioning the dropped warps and moving them clear of the hooked spindles the machine has an appliance comprising a rotatable comb 16 (Figs. 25, 26)-' WhlChlliLS tines 17 projecting in opposite directions.

a This comb is pushed between the two layers of warps, with its tines 1'? horizontal, shortly before the warpsflare dropped, and is then rotated through '90? and retracted at the momentwhen the hooked. spindles rotate. By this means the warps engaged with the tines are tensioned and those released 'by the'hooks are moved clear of the spindles,

whereupon a separating needle 18 descends I between the released warps and the warps stilLon the spindles. and moves horizontally toward the tying appliance, taking the released warps with it. The comb 16 is then moved back to slacken -the warps on the hooked spindles, and is rotated through so that its tines return to horizontal position clear of the warps, the machine with the comb being 'advaiiced'so that the operation can be repeated; Theshank 19 of the comb is rotatable in a sleeve 22, thela tter being slidable in a bearing 20 and being thrust toward the. warps by a spring 21. Apin 23 fixed to the sleeve 22 and projecting into a slotin the bearing prevents rotation of the sleeve. A ring 2% slidably and ro'tatably mounted on the rear end of the sleeve 22 has lateral projections 25 engaging it with the slotted end of a bell-crank 27', andfthe' latter is rocked by a cam 26, whereby the ring-2ft is reciprocatedv The shank 19 has fixed to it a pin 28 entering an oblique camslot 29 in the ring 2%,the sleeve 2-]: having. an aperture 80 giving passage to the pin 28.

W'hen the tines of the comb are horizontal the pin 28 is at that end of the cam-slot 29 which is farthest removed from the warps.

When ring 24 is moved away from the warps it first slides on the sleeve 22, and the camslot 29 acting on the pin 28 causes the comb to rotate through 90, the sleeve 22 being retained by the spring 21. When the pin 28 has reached that end of the slot which is nearest the warps, the continued movement of the ring 24 retracts the comb from between the warps.

The separating needle 18 is actuated by a cam disk 31, rod and bell-crank 33, the latter carrying a roller 8-1- which rests on the head 35 of a spindle 36 held up by a spring 37 in a bearing 38, in which the spindle 36 is slidable. A pin 39 projects from the spindle into a bent slot 40 in the bearing, so that in the course of its longitudinal movement the spindle must also make a rotary movement. A crank ll fixed to the lower end of the spindle carries the separating needle 18.

The warps removed by the needle 18 from the hooked spindles are transferred to two hooked jaws 42 (Figs. 1 and which are then closed by a cam 43 acting on a presser 4H, and are retracted by a spindle .5 which is slidable in bearings %l(' A spring :7 tends to thrust this spindle toward the warps, and a. double armed lever 49, engaging a -c0l-, lar 50 on the spindle, and actuated by a cam 48, retracts the spindle. The closing of the jaws 42 moves the warps between the jaws into one plane, and the jaws transfer these warps to a gripping device 50, 54, the upper member 54 of which is depressed by a cam 55 and spring-pressed rod 56, so that the warps are gripped. At the same time a knife, not shown in the drawing, is actuated by a cam 57 and rod 58, and cuts the free end of the fresh warp and the end of the old warp lying toward the beam. A presser 5D, actuated by a cam 60 and rod (31, then acts on the threads and draws them through the gripper device 53, 54, and between the member 53 and 58 so that the threads,become sulliciently slack for tying. Simul taneously with the closing of the jaws 12 a fork G7 ascends and takes the threads between its prongs, this fork being moved by earns 62 and (53, and levers G4, G5, (36. lVhen the threads held by the members 53, 54 have been slackened by the member 59 the fork 67 is moved toward the frame 51, 52 for the purpose of transferring the threads to a knotting appliance 68 (Figs. 10, ll, 12).

The knotting appliance comprises a sleeve 69 terminating at one end in a point somewhat like a pen. The sleeve 69 has a slot 70, in which lies a Hat hook 71 pivoted at 72 to the sleeve. A rod 73 extends into the sleeve 69, in which it is slidable, the rod having a forked end with a cross-pin 7% which passes through an oblique slot 75 in the hook 71. The rod 73 has a slot 76 for the pivot 72 of the hook. Above the sleeve 69 there is a shaft 77, driven by a chain from the shaft 15. Toothed wheels 78, meshing with each other and fixed to the shaft 77 and sleeve 69 respectively, rotate the sleeve and are proportioned so that the sleeve makes two revolutions during one revolution of the shafts 14 and 15. Another toothed wheel 79 fixed to the shaft 77 meshes with a toothed wheel 80 which is rotatable on the rod 73 and has fixed to it a cam disk 83. In the course of two revolutions of the sleeve (3.) this caln disk makes one revolution, in the course of which the boss 82 of the cam rides over a roller 83, whereby the rod 73 is partly withdrawn from the sleeve, so thatthe hook 71 is raisedby the pin 7-il working in the slot 75, as shown in Fig. 10. A spring 84 then restores the rod 73 to its normal position, so that the hook is dropped again and protrudes from a slot 85 in the underside of the sleeve.

The manner of knotting the threads, illustrated in Figs. 18 to 2 1, will now be described. threads is shown in Figs. 18 to 24. The fork 67 carries the threads behind the hook 71 protruding from the slot 85, as shown in Fig. 18. Thehook then makes a revolution, during which its rounded back engages the threads (Figs. 19 and 20), so that on complet-ion of the revolution the threads are looped around the tube 60 and the shank of the hook, as shown in Fig. 21.. The fork 67 then advances, as shown in Fig. 22, so i that the thread-ends held by the gripper 53, 5d are engaged with the notch 86 of the hook. During these operations the presser 59 recedes, in order to slacken the threads and enable them to be manipulated by the knotter. lVhen the threads have been engaged with the notch 86 a pair of shears 88 actuated by a cam 87 on the shaft 77 (Fig. 12) advances and cuts the threads between the fork 67 and the gripper T3, 54:. The rod 73 is then suddenly withdrawn by the action of the cam disk 81 (Fig. 10), so that the hook is rocked and draws the threads through the slot 85, the inclined surface 89 causing the threads to move toward the point of the knotter. At the same time a curved arm 90 (Figs. 5 and 24:) actuated by a cam disk )1 is laid over the threads and moved downward, whereby the loosely looped threads are stripped off the point of the kmtter (Fig. 24.), but the ends of the thread are temporarily retained in the notch 86, so that knots are made and drawn light by the. downward movement of the member 90, which also ultimately pulls the threads out of the notch 86. When the knotter has completed its first revolution (Fig. 21), the next two warps to be tied are For elearness, only one of the stripped oil the hooked spindles, and while the knotter is acting as described above these.

warps are bronght up-by the jaws 12 and transferred to the gripper. 53, '51. The length oft-hread cut' otl' hy the knife on the rod 58 and the shears 88 is seized by fingers 92' (Fig.9), which-are actuated by a toothed wheel 9.3, cam 31 and levers 94c, 95. A finger 96 moves apart the ends 97 of a looped spring 98, and the fingers 92 place the cut thread between j these spring-ends." The projecting fibers of the cut threads inserted in ithe coiirse of successive tying operations interlock with eacheother, and

"the threads are gradually pressed into the loop of the spring 98, whence they ultimatelydrop in the form of a more or less I tangled mass. The carriage 1 has wheels 99 running on rails 100, and is driven by a cam 101, levers 102, 103, pawl 104 and iatchetwheel 105, the ratchet whedl being fixed to a screwed shaft 106 engaged with screwed eyes -10? connected to the rails that by turning the shaft 100 by means of a crank-jibe carriageis moved. along the For regi-ila ting the advance not the car riage, ja stop motion is provided, which its throws the propellingmechanism out of hook lying opposite the hooked end of t'he rod 109. The other :en'd ot the rod 1121s bent 'to' an obtuse angle behind the pawl.

104. It the advance of the carriage is greater thanrequired by the consumption of thread, the warp lying against the bell crank-l-13 rocks the latter and hooks'iton to the rod 109, so that the rod 109 moves the less close than the upper warp 2 the ..gri];?-,-

r0d-112,'which disengages the pawl 10-1 from the ratchet wheel l05'an d stops the advance-of the machine until'the bell crank is allowed by the thread to rock away fromthe hooked rod 109. v Inasmuch as the distance'hetween the top and bottom-warps varies it is necessary to provide means whereby the foremost thread of each'war'p is always held close to the heck of the spindle over. which'it passes, so that if, forlexample, the lower warp 3 is pers, 5 are-moved towardthe hook, whereas ifthe threads of the lowerwarp are bloser, the opposite movement is effected. "For" this purpose a doublearmed feeler 114 is pivoted to the carriage 1 (Figs. 1 to. 1),"

with its lower armat an obtuse angleto the upper arm, the'wei'g-ht of the'lower arm ter.

pressing the upper arm lightly against toremost thread or" the lower warp 3. rod 115 connects the lower arm of the feeler to the lower arm of av double armed lever 116,,the upperarm of which carriesla roller- 117 adapted to lift either of two pivoted latches 118, 119' so that the nose of the lifted latch is engaged by the end'off a lever 120 reciprocated at intervals by the cam 31; By this means the r'od 121' or 122 to which the lifted latchis pivoted is moved longitudinally in its bearing 123, againstthe action of a spring 124 or 125.- inents 120, 127 at the cnds of the rods 121, 122 normally rest on' tails of pawls 128, 129

pivoted to'a lever 1'32 actuated by. a square disk 13, and preventthese pawls from engaging ratchet wheels 130, 131 and rotating the toothed wheels 133, 134 fined to the latt'he wheel 134 meshes with an intermediate The toothed wheel 133 meshes with a toothed wheel 135 fixed to the shaft 10, and

Beveled abut- I fixed to the said shaft. 10 engages a threaded eye on the carriage 137 of the grippers 5, sothat this carriage The screwed shaftis moved in one or the other direction if" either of the pawls 128 or 129 is allowed to engage and rotate its ratchet, wheelhythe lifting of the latch 118 or 119. a

lithe distance of the threads of the lower Warp'is greater than in the upper warp, the

foremost thread of the lower warp-lags he:

hind thetoremost thread'of the upper warp."

The feeler 111 accordingly assumes an inclination to the left,and;the upper arm of the lever 116 assumes a similar'inclination,

whereby it acts'on .a pendent boss of the latch 119 and lifts the latter. to the position indicated by dotted lines in Fig.-.1.- Accordingly the rod 122 is moved and releases the i pawl 129, whereby the ratchet wheel131 is,- rotated and causeslj'the carriage 13-7 and the v 11-1 becomesvertical again, whereupon the lifted latch is dropped and the pawl 129disengaged. If the density of the lower warp lower warp to moveinward until the arm" is greater the upper arm ot'the lever 116 isinclined to the right-,lifts the latch 118, and

causes the rod 121 to release the pawl l28',

so that the'ratchet wheel 130 is rotated'and moves the carriage 137 outward. Figs. 13 t0f16 illustrate a device for stop ping thecmachine in case of absence of a thread. This comprises a rod 138 reciprocated by the lever 49 and mounted in a hearing 139 which is'slidable in a forked bearing 140 fixed to the frame' The front end of the rod 138 is slotted and carries two jaws "142 which are 'held apart; by springs 141 and haveshoulders 143 normallyprevensting them from being drawn into the bearing 139, so that they move this bearing when the 'rod f138 is moved tothe left. The tips of the jaws lieibetween the threads which are dropped from the hooked spindles, so that these threads, when pressed together by the previously described jaws 42, compress the jaws 142 and allow the latter to slide into the bearing without moving same. I l, however, one of the threads is missing (Fig. let?) one of the jawslatil remains in position to move the bearing 139 by its shoulder H3, and an abutment H4 it the rear end of the bearing actuates a lever 1&5, l-lG pivoted to the lever 49, so that a shoe ll? fixed to the lever arm 146' is lifted. On the driving shaft 148 there is a loose wheel. 1-ll and a fixed clutch 150, the latter comprising a spring pressed member 152 provided with a pin lbl normally engaged with a hole in the wheel 149, so that rotation of the latter is transmitted to the shaft. When the shoe 1+1? is lifted, it lies in the path of the pawl 152 and disengages the same from the wheel 149, so that the machine is stopped.

\Vhat we claim as our invention and de sire to secure by Letters Patent of the United States is:

1. In. a warpt-ying machine the combina tion of a carriage; means for propelling said carriage, means for uncoupling said propelling means, said uncoupling means coinprising a slidablerod on said carriage; a

hooked rod on said carriage, means for reciprocating said hooked rod; a bell-crank pivoted to the first-mentioned slidable rod, said bell-crank having a hooked arm adapted to engage said hooked rod and a pendantarln; means for holding warp threads in the path (it said pendant arm; a tapered, tubu- Y lar, slotted member on said carriage; means for rotating said member'about its axis; a hook pivoted in said tubular member; means for rocking said hook whereby said hook is caused to project alternately at opposite sides of said tubular member; means for feeding warp threads to said tubular member, whereby said hook, projecting from one side of said member, is enabled to loop such threads around said member and then draw the threads through the loop in the course of its rocking llltfl'tlllll'llt; and means for stripping looped threads from said tubular member.

2. in a warp-tying machine the combination of a carriage; propelling mechanism for said carriage; supports for holding two warp threads one above the other in the path of said carriage; means for horizontally adjusting one of said supports in relation to lhe other; mechanism on the carriage tor actuating said adjusting means; two coupling devices on the carriage for connecling said actuating mechanism to the ad justiug means, for producing forward and rearward adjustments of the adjustable support respectively; a movable feeler on the carriage arranged to bear against a warp held by said adjustable support; means enrocking said hook whereby said hook is caused to project alternately at opposite sides of said tubular member; means for feeding warp threads to said tubular memher, whereby said hook, projecting from one side of said member, is enabled to loop such threads around said member and then draw the threads through the loop in the course of its rocking movement; and means for stripping looped threads from said tubular member. a

3. In a warp-tying machine the combination of a carriage; propelling mechanism for said carriage; means for holding in the path of said carriage two layers of parallel warp threads spaced apart; a series of parallel spindles on said carriage arranged altei-nately at different levels, whereby warp threads held by said holding. means and passing over and under said spindles are placed cross-wise; a comb on sald carriage having tines projecting from two opposite sides; mechanism on said carriage for re- ('i procating and rotating said comb, whereby the latter can be thrust between the layers of warps, rotated to engage said warps, and retracted to withdraw warps from said spindles; a needle on said carriage; mechanism on said carriage for vertically reciprocating and laterally moving said needle, whereby the latter can engage andlaterally displace warpsremoved from said spindles; a tapered, tubular, slotted member on said carriage; means for rotating said member about its axis; a hook pivoted in said tubulur member; means for rocking said hook whereby said hook is caused to project al lernately at opposite sides of said tubular member; means for feeding warp threads to said tubular member, whereby said ,hook, projecting from one side of said member, is

enabled to loop such threads around said" member and then draw the threads through the loop in the course of its rocking move-- ment; and means for stripping loope'd threads from said tubular member.

4. In a warp-tying machine the combination of a carriage; means for propelling said carriage; means on said carriage for uncoupling said propelling means; means for holding in the path of said carriage two parallel Warp threads; means on the carriage for engaging and pressing together said warp threads; a movable bearing'on the carriage adapted to actuate said uncoupling means; a rod slidable in said bearing; means on the carriage for reciprocating said slidable rod; two spring-pressed jaws pivot'ed to said rod in position to be thrust by said rod between said warp threads each' adapted to engage and move said bearing,

her; means for rocking said hook whereby 10 said hook-is caused to project alternately at opposite sides of said tubular member; .means for feedlng warp threads to said tubular member, whereby said hook, projecting from one side of said member, is enabled to'loop such threads around said 5 member and then draw the threads through the loop in the course of its rocking movement; and means for stripping looped threads from said tubular member.

In witness whereof we have signed this 20 specification in the presenoeof two witnesses.

OTTO FISCHER.

1 OSKAR FISCHER.

\Vitnesses PAU RICHARD STOOKHAUS', Ronlm r H. VIER. 

